Short communication, Note
https://doi.org/10.5599/jese.1699
Feasibility study of amperometric and electrochemical quartz crystal microbalance measurements for in situ state of charge monitoring in vanadium flow batteries
Claudia Weidlich
; DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486 Frankfurt, Germany
Felix Lulay
; DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486 Frankfurt, Germany
Matthias Wieland
; DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486 Frankfurt, Germany
Abstract
For an efficient flow battery operation, knowledge of the state of charge of the battery is essential. Monitoring the state of charge of both half cells is advantageous concerning a timely detection of crossover processes. We present the first results for amperometric and electrochemical quartz crystal microbalance measurements in a vanadium flow battery test setup. By validating with half cell potential measurements as well as ex situ titration we investigated the applicability of both electrochemical methods for an in situ half cell state of charge monitoring.
Keywords
Crossover; half cell; electrolyte properties
Hrčak ID:
307194
URI
Publication date:
11.8.2023.
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